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Author SHA1 Message Date
Jani Nikula
a74549dd55 drm/i915: deprecate the i915.modeset module parameter
The i915.modeset parameter doesn't really provide any useful benefit
over the nomodeset kernel parameter. Anything that i915.modeset does can
be achieved via nomodeset or not probing i915 at all.

Unfortunately, the i915.modeset parameter is widely referenced on
various forums, and removing it is not that simple. Start off by
deprecating it in the module parameter documentation, and logging a
warning message on non-default values.

Cc: Daniel Veter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/2c63e2048eed64f728478fbcfc84f51c7f3212e6.1724843853.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-08-29 17:53:02 +03:00
Tvrtko Ursulin
0f1bb41bf3 drm/i915: Support replaying GPU hangs with captured context image
When debugging GPU hangs Mesa developers are finding it useful to replay
the captured error state against the simulator. But due various simulator
limitations which prevent replicating all hangs, one step further is being
able to replay against a real GPU.

This is almost doable today with the missing part being able to upload the
captured context image into the driver state prior to executing the
uploaded hanging batch and all the buffers.

To enable this last part we add a new context parameter called
I915_CONTEXT_PARAM_CONTEXT_IMAGE. It follows the existing SSEU
configuration pattern of being able to select which context to apply
against, paired with the actual image and its size.

Since this is adding a new concept of debug only uapi, we hide it behind
a new kconfig option and also require activation with a module parameter.
Together with a warning banner printed at driver load, all those combined
should be sufficient to guard against inadvertently enabling the feature.

In terms of implementation we allow the legacy context set param to be
used since that removes the need to record the per context data in the
proto context, while still allowing flexibility of specifying context
images for any context.

Mesa MR using the uapi can be seen at:
  https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27594

v2:
 * Fix whitespace alignment as per checkpatch.
 * Added warning on userspace misuse.
 * Rebase for extracting ce->default_state shadowing.

v3:
 * Rebase for I915_CONTEXT_PARAM_LOW_LATENCY.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Carlos Santa <carlos.santa@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Tested-by: Carlos Santa <carlos.santa@intel.com>
Signed-off-by: Tvrtko Ursulin <tursulin@igalia.com>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514145939.87427-2-tursulin@igalia.com
2024-05-16 07:37:05 +00:00
Jani Nikula
e9913f0bd2 drm/i915/display: move dmc_firmware_path to display params
The dmc_firmware_path parameter is clearly a display parameter. Move it
there so it's available to both i915 and xe modules. This also cleans up
the ugly member in struct xe_device.

v2:
- New try with the NULL/"" param value issue resolved

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7c8223b68fdafbc72bee0bf5afdb2ab15261cf00.1713519628.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22 16:48:14 +03:00
Jani Nikula
068d6e9e76 drm/i915/dmc: change how to disable DMC firmware using module param
The distinction between the dmc_firmware_path module param being NULL
and the empty string "" is problematic. It's not possible to set the
parameter back to NULL via sysfs or debugfs. Remove the distinction, and
consider NULL and the empty string to be the same thing, and use the
platform default for them.

This removes the possibility to disable DMC (and runtime PM) via
i915.dmc_firmware_path="". Instead, use "/dev/null" as the magic
firmware path to skip DMC firmware loading and disable runtime PM.

v2: Add support for i915.dmc_firmware_path="/dev/null" (Gustavo)

Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8695aca8a6643e36bb680bc2dcab97c637e70b00.1713519628.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22 16:48:13 +03:00
Jani Nikula
318e82583c Revert "drm/i915/display: move dmc_firmware_path to display params"
This reverts commit 0d82a0d6f5.

The commit failed to take into account that the parameter duplication
and debugfs for char * parameters were subtly different between i915
core and display, and caused the DMC and PM to be disabled. Moreover,
the patch was pushed with failing CI results. Revert, and get back to
the drawing board.

Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-03 00:32:17 +03:00
Jani Nikula
0d82a0d6f5 drm/i915/display: move dmc_firmware_path to display params
The dmc_firmware_path parameter is clearly a display parameter. Move it
there so it's available to both i915 and xe modules. This also cleans up
the ugly member in struct xe_device.

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240321161856.3517856-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-02 11:23:14 +03:00
Jouni Högander
8d3265a76f drm/i915/display: Move enable_dp_mst under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-24-jouni.hogander@intel.com
2023-10-26 12:16:39 +03:00
Jouni Högander
192a4444ab drm/i915/display: Move nuclear_pageflip under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-23-jouni.hogander@intel.com
2023-10-26 12:16:25 +03:00
Jouni Högander
f2e71d2c6b drm/i915/display: Move verbose_state_checks under display
v2: Change device parameter permissions to 0400

Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-22-jouni.hogander@intel.com
2023-10-26 12:16:18 +03:00
Jouni Högander
514bec3387 drm/i915/display: Use device parameters instead of module in I915_STATE_WARN
Also make module parameter as non writable.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-21-jouni.hogander@intel.com
2023-10-26 12:16:11 +03:00
Jouni Högander
d3e6d002ed drm/i915/display: Move disable_display parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-20-jouni.hogander@intel.com
2023-10-26 12:16:04 +03:00
Jouni Högander
1f3f5eb3b0 drm/i915/display: Move force_reset_modeset_test parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-19-jouni.hogander@intel.com
2023-10-26 12:15:56 +03:00
Jouni Högander
98a4784e20 drm/i915/display: Move load_detect_test parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-18-jouni.hogander@intel.com
2023-10-26 12:15:49 +03:00
Jouni Högander
5621e0652d drm/i915/display: Move enable_dpcd_backlight module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-17-jouni.hogander@intel.com
2023-10-26 12:15:41 +03:00
Jouni Högander
87706a67ad drm/i915/display: Move edp_vswing module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-16-jouni.hogander@intel.com
2023-10-26 12:15:31 +03:00
Jouni Högander
5234105ea8 drm/i915/display: Move invert_brightness module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-15-jouni.hogander@intel.com
2023-10-26 12:15:22 +03:00
Jouni Högander
c39fc2aca3 drm/i915/display: Move enable_ips module parameter under display
Move enable_ips module parameter under display and change it as boolean.

v2:
  - Change enable_ip as boolean
  - Fix copy paste error (i915_param -> intel_display_param)

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-14-jouni.hogander@intel.com
2023-10-26 12:15:14 +03:00
Jouni Högander
bfcda58ba1 drm/i915/display: Move disable_power_well module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-13-jouni.hogander@intel.com
2023-10-26 12:15:06 +03:00
Jouni Högander
5067ec645e drm/i915/display: Move enable_sagv module parameter under display
Move enable_sagv module parameter under display and change the parameter
permissions to non-writblase (0400)

v2: Change permissions to 0400

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-12-jouni.hogander@intel.com
2023-10-26 12:14:59 +03:00
Jouni Högander
04da42b4cc drm/i915/display: Move enable_dpt module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-11-jouni.hogander@intel.com
2023-10-26 12:14:50 +03:00
Jouni Högander
0deee706f1 drm/i915/display: Move enable_dc module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-10-jouni.hogander@intel.com
2023-10-26 12:14:44 +03:00
Jouni Högander
5fb2e673c7 drm/i915/display: Move vbt_sdvo_panel_type module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-9-jouni.hogander@intel.com
2023-10-26 12:14:37 +03:00
Jouni Högander
94232d1637 drm/i915/display: Move panel_use_ssc module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-8-jouni.hogander@intel.com
2023-10-26 12:14:31 +03:00
Jouni Högander
d541697e80 drm/i915/display: Move lvds_channel_mode module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-7-jouni.hogander@intel.com
2023-10-26 12:14:24 +03:00
Jouni Högander
29292bc6cc drm/i915/display: Move vbt_firmware module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-6-jouni.hogander@intel.com
2023-10-26 12:14:18 +03:00
Jouni Högander
942d654171 drm/i915/display: Move psr related module parameters under display
Move psr related module parameters under display. Also fix error in
enable_psr2_sel_fetch module parameter descrtiption. It was saying disabled
by default while it's vice versa. Also psr_safest_params was missing
default value in description. This is now added.

v2:
  - Fix enable_psr2_sel_fetch description.
  - Add default value into psr_safest_params description.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-5-jouni.hogander@intel.com
2023-10-26 12:14:00 +03:00
Jouni Högander
6f4f8aef7e drm/i915/display: Move enable_fbc module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-4-jouni.hogander@intel.com
2023-10-26 12:13:50 +03:00
Arun R Murthy
58883680a8 drm/i915: Remove the module parameter 'fastboot'
By default fastboot is enabled on all Display 9+ platforms and disabled
on older platforms. Its not necessary to retain this as a module
parameter.

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926091157.635438-1-arun.r.murthy@intel.com
2023-10-12 12:45:23 +05:30
Ville Syrjälä
419e505dab drm/i915: Add i915.enable_sagv modparam
Currently we have no sane way to forcibly disable SAGV, which
makes debugging things a PITA. Manually poking at the pcode
mailbox with it's various SAGV/QGV/PSF formats is no fun,
and likely to be clobbered by the driver anyway.

Let's add a modparam for this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230322181219.5511-1-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2023-03-25 00:16:36 +02:00
Ville Syrjälä
c5de248484 drm/i915/dpt: Add a modparam to disable DPT via the chicken bit
Add i915.enable_dpt modparam to allow disabling the DPT
usage in hardware via the chicken bit. Useful when debugging
potential DPT issues.

Quickly smoke tested on ADL.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320090522.9909-6-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
2023-03-24 23:56:35 +02:00
Jani Nikula
7448d336bc drm/i915/params: use generics for parameter free
Replace the __builtin_strcmp() if ladder with generics.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-3-jani.nikula@intel.com
2023-01-25 16:25:35 +02:00
Jani Nikula
7ce59bcf67 drm/i915/params: use generics for parameter dup
Replace the __builtin_strcmp() if ladder with generics.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-2-jani.nikula@intel.com
2023-01-25 16:25:33 +02:00
Jani Nikula
bfe7586b11 drm/i915/params: use generics for parameter printing
Replace the __builtin_strcmp() if ladder with generics.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-1-jani.nikula@intel.com
2023-01-25 16:25:32 +02:00
Daniel Vetter
045e8d102f Merge tag 'drm-intel-gt-next-2023-01-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
Driver Changes:

Fixes/improvements/new stuff:

- Fix workarounds on Gen2-3 (Tvrtko Ursulin)
- Fix HuC delayed load memory leaks (Daniele Ceraolo Spurio)
- Fix a BUG caused by impendance mismatch in dma_fence_wait_timeout and GuC (Janusz Krzysztofik)
- Add DG2 workarounds Wa_18018764978 and Wa_18019271663 (Matt Atwood)
- Apply recommended L3 hashing mask tuning parameters (Gen12+) (Matt Roper)
- Improve suspend / resume times with VT-d scanout workaround active (Andi Shyti, Chris Wilson)
- Silence misleading "mailbox access failed" warning in snb_pcode_read (Ashutosh Dixit)
- Fix null pointer dereference on HSW perf/OA (Umesh Nerlige Ramappa)
- Avoid trampling the ring during buffer migration (and selftests) (Chris Wilson, Matthew Auld)
- Fix DG2 visual corruption on small BAR systems by not forgetting to copy CCS aux state (Matthew Auld)
- More fixing of DG2 visual corruption by not forgetting to copy CCS aux state of backup objects (Matthew Auld)
- Fix TLB invalidation for Gen12.50 video and compute engines (Andrzej Hajda)
- Limit Wa_22012654132 to just specific steppings (Matt Roper)
- Fix userspace crashes due eviction not working under lock contention after the object locking conversion (Matthew Auld)
- Avoid double free is user deploys a corrupt GuC firmware (John Harrison)
- Fix 32-bit builds by using "%zu" to format size_t (Nirmoy Das)
- Fix a possible BUG in TTM async unbind due not reserving enough fence slots (Nirmoy Das)
- Fix potential use after free by not exposing the GEM context id to userspace too early (Rob Clark)
- Show clamped PL1 limit to the user (hwmon) (Ashutosh Dixit)
- Workaround unreliable reset on Jasperlake (Chris Wilson)
- Cover rest of SVG unit MCR registers (Gustavo Sousa)
- Avoid PXP log spam on platforms which do not support the feature (Alan Previn)
- Re-disable RC6p on Sandy Bridge to avoid GPU hangs and visual glitches (Sasa Dragic)

Future platform enablement:

- Manage uncore->lock while waiting on MCR register (Matt Roper)
- Enable Idle Messaging for GSC CS (Vinay Belgaumkar)
- Only initialize GSC in tile 0 (José Roberto de Souza)
- Media GT and Render GT share common GGTT (Aravind Iddamsetty)
- Add dedicated MCR lock (Matt Roper)
- Implement recommended caching policy (PVC) (Wayne Boyer)
- Add hardware-level lock for steering (Matt Roper)
- Check full IP version when applying hw steering semaphore (Matt Roper)
- Enable GuC GGTT invalidation from the start (Daniele Ceraolo Spurio)
- MTL GSC firmware support (Daniele Ceraolo Spurio, Jonathan Cavitt)
- MTL OA support (Umesh Nerlige Ramappa)
- MTL initial gt workarounds (Matt Roper)

Driver refactors:

- Hold forcewake and MCR lock over PPAT setup (Matt Roper)
- Acquire fw before loop in intel_uncore_read64_2x32 (Umesh Nerlige Ramappa)
- GuC filename cleanups and use submission API version number (John Harrison)
- Promote pxp subsystem to top-level of i915 (Alan Previn)
- Finish proofing the code agains object size overflows (Chris Wilson, Gwan-gyeong Mun)
- Start adding module oriented dmesg output (John Harrison)

Miscellaneous:

- Correct kerneldoc for intel_gt_mcr_wait_for_reg() (Matt Roper)
- Bump up sample period for busy stats selftest (Umesh Nerlige Ramappa)
- Make GuC default_lists const data (Jani Nikula)
- Fix table order verification to check all FW types (John Harrison)
- Remove some limited use register access wrappers (Jani Nikula)
- Remove struct_member macro (Andrzej Hajda)
- Remove hardcoded value with a macro (Nirmoy Das)
- Use helper func to find out map type (Nirmoy Das)
- Fix a static analysis warning (John Harrison)
- Consolidate VMA active tracking helpers (Andrzej Hajda)
- Do not cover all future platforms in TLB invalidation (Tvrtko Ursulin)
- Replace zero-length arrays with flexible-array members (Gustavo A. R. Silva)
- Unwind hugepages to drop wakeref on error (Chris Wilson)
- Remove a couple of superfluous i915_drm.h includes (Jani Nikula)

Merges:

- Merge drm/drm-next into drm-intel-gt-next (Rodrigo Vivi)

danvet: Fix up merge conflict in intel_uc_fw.c, we ended up with 2
copies of try_firmware_load() somehow.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y8fW2Ny1B1hZ5ZmF@tursulin-desk
2023-01-24 16:20:43 +01:00
Rodrigo Vivi
157821fb3e drm/i915: Expand force_probe to block probe of devices as well.
There are new cases where we want to block i915 probe, such
as when experimenting or developing the new Xe driver.

But also, with the new hybrid cards, users or developers might
want to use i915 only on integrated and fully block the probe
of the i915 for the discrete. Or vice versa.

There are even older development and validation reasons,
like when you use some distro where the modprobe.blacklist is
not present.

But in any case, let's introduce a more granular control, but without
introducing yet another parameter, but using the existent force_probe
one.

Just by adding a ! in the begin of the id in the force_probe, like
in this case where we would block the probe for Alder Lake:

$ insmod i915.ko force_probe='!46a6'

v2: Take care of '*' and  '!*' cases as pointed out by
    Gustavo and Jani.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230103194701.1492984-1-rodrigo.vivi@intel.com
2023-01-05 14:19:33 -05:00
Daniele Ceraolo Spurio
242c4b91cd drm/i915/uc: Introduce GSC FW
On MTL the GSC FW needs to be loaded on the media GT by the graphics
driver. We're going to treat it like a new uc_fw, so add the initial
defs and init/fini functions for it.

Similarly to the other FWs, the GSC FW path can be overridden via
modparam. The modparam can also be used to disable the GSC FW loading by
setting it to an empty string.

Note that the new structure has been called intel_gsc_uc to avoid
confusion with the existing intel_gsc, which instead represents the heci
gsc interfaces.

v2: re-order Makefile list to be properly sorted (Jani, Alan), better
    comment (alan)

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221208200521.2928378-2-daniele.ceraolospurio@intel.com
2022-12-09 08:28:41 -08:00
Jim Cromie
f158936b60 drm: POC drm on dyndbg - use in core, 2 helpers, 3 drivers.
Use DECLARE_DYNDBG_CLASSMAP across DRM:

 - in .c files, since macro defines/initializes a record

 - in drivers, $mod_{drv,drm,param}.c
   ie where param setup is done, since a classmap is param related

 - in drm/drm_print.c
   since existing __drm_debug param is defined there,
   and we ifdef it, and provide an elaborated alternative.

 - in drm_*_helper modules:
   dp/drm_dp - 1st item in makefile target
   drivers/gpu/drm/drm_crtc_helper.c - random pick iirc.

Since these modules all use identical CLASSMAP declarations (ie: names
and .class_id's) they will all respond together to "class DRM_UT_*"
query-commands:

  :#> echo class DRM_UT_KMS +p > /proc/dynamic_debug/control

NOTES:

This changes __drm_debug from int to ulong, so BIT() is usable on it.

DRM's enum drm_debug_category values need to sync with the index of
their respective class-names here.  Then .class_id == category, and
dyndbg's class FOO mechanisms will enable drm_dbg(DRM_UT_KMS, ...).

Though DRM needs consistent categories across all modules, thats not
generally needed; modules X and Y could define FOO differently (ie a
different NAME => class_id mapping), changes are made according to
each module's private class-map.

No callsites are actually selected by this patch, since none are
class'd yet.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20220912052852.1123868-3-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-24 15:02:01 +02:00
Priyanka Dandamudi
17cd10a44a drm/i915: Add lmem_bar_size modparam
For testing purposes, support forcing the lmem_bar_size through a new
modparam. In CI we only have a limited number of configurations for DG2,
but we still need to be reasonably sure we get a usable device (also
verifying we report the correct values for things like
probed_cpu_visible_size etc) with all the potential lmem_bar sizes that
we might expect see in the wild.

v2: Update commit message and a minor modification.(Matt)

v3: Optimised lmem bar size code and modified code to resize
bar maximum upto lmem_size instead of maximum supported size.(Nirmoy)

v4: Optimised lmem bar size code.(Nirmoy)

Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220713130209.2573233-3-priyanka.dandamudi@intel.com
2022-07-13 17:47:51 +01:00
Rodrigo Vivi
e1e1f4e325 Merge drm/drm-next into drm-intel-gt-next
In order to get the GSC Support merged on drm-intel-gt-next
in a clean fashion we needed this ATS-M patch to avoid
conflict in i915_pci.c:

commit 412c942bdf ("drm/i915/ats-m: add ATS-M platform info")

--

Fixing a silent conflict on drivers/gpu/drm/i915/gt/intel_gt_gmch.c:
-       if (!intel_vtd_active(i915))
+       if (!i915_vtd_active(i915))

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-04-21 13:48:26 -04:00
Jani Nikula
83970cd63b Merge drm/drm-next into drm-intel-next
Sync up with v5.18-rc1, in particular to get 5e3094cfd9
("drm/i915/xehpsdv: Add has_flat_ccs to device info").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2022-04-11 16:01:56 +03:00
CQ Tang
be658e705d drm/i915: add lmem_size modparam
lmem_size is used to limit the amount of lmem for testing purposes.
Default is to use hardware available lmem size.

Signed-off-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220324143123.348590-2-matthew.auld@intel.com
2022-03-28 09:06:29 +01:00
José Roberto de Souza
9c95f96392 drm/i915/display: Allow users to disable PSR2
Some users are suffering with PSR2 issues that are under debug or
issues that were root caused to panel firmware bugs, to make life of
those users easier here adding a option to disable PSR2 with kernel
parameters so they can still benefit from PSR1 power savings.

Using the same enable_psr that is current used to turn the whole
feature on or off and allowing user to select up to what PSR version
it should enable.
Right now users only set this parameter to 0 when they want to disable
PSR1 and PSR2 or don't add it at all leaving it to per-chip behavior
so it should not cause a bad impact on users.

v2:
- changing enable_psr values (Ville and Rodrigo)

Link: https://gitlab.freedesktop.org/drm/intel/-/issues/4951
Cc: Jouni Högander <jouni.hogander@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220224202523.993560-1-jose.souza@intel.com
2022-03-03 05:50:47 -08:00
Lucas De Marchi
01fabda8e3 drm/i915: Use str_yes_no()
Remove the local yesno() implementation and adopt the str_yes_no() from
linux/string_helpers.h.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225234631.3725943-1-lucas.demarchi@intel.com
2022-03-02 08:48:13 -08:00
Lucas De Marchi
8c26491f58 drm/i915: Kill the fake lmem support
This was useful for early development of lmem, but it's not used
anymore, so remove it.

v2: Remove unneeded fields from struct intel_memory_region

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220217175634.4128754-1-lucas.demarchi@intel.com
2022-02-18 22:31:46 -08:00
Chris Wilson
bd56c63ca1 drm/i915: Test all device memory on probing
This extends the previous sanitychecking of device memory to read/write
all the memory on the device during the device probe, ala memtest86,
as an optional module parameter: i915.memtest=1. This is not expected to
be fast, but a reasonably thorough verfification that the device memory
is accessible and doesn't return bit errors.

v2: Rebased.

Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211208153404.27546-4-ramalingam.c@intel.com
2021-12-14 15:08:20 +05:30
John Harrison
47c65b3853 drm/i915/uc: Use platform specific defaults for GuC/HuC enabling
The meaning of 'default' for the enable_guc module parameter has been
updated to accurately reflect what is supported on current platforms.
So start using the defaults instead of forcing everything off.
Although, note that right now, the default is for everything to be off
anyway. So this is not a change for current platforms.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210603164812.19045-2-matthew.brost@intel.com
2021-06-09 10:52:03 -07:00
Tvrtko Ursulin
54d4e9f5c4 drm/i915: Allow configuring default request expiry via modparam
Module parameter is added (request_timeout_ms) to allow configuring the
default request/fence expiry.

Default value is inherited from CONFIG_DRM_I915_REQUEST_TIMEOUT.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210324121335.2307063-8-tvrtko.ursulin@linux.intel.com
2021-03-26 01:01:38 +01:00
Lyude Paul
2227816e64 drm/i915/dp: Allow forcing specific interfaces through enable_dpcd_backlight
Since we now support controlling panel backlights through DPCD using
both the standard VESA interface, and Intel's proprietary HDR backlight
interface, we should allow the user to be able to explicitly choose
between one or the other in the event that we're wrong about panels
reliably reporting support for the Intel HDR interface.

So, this commit adds support for this by introducing two new
enable_dpcd_backlight options: 2 which forces i915 to only probe for the
VESA interface, and 3 which forces i915 to only probe for the Intel
backlight interface (might be useful if we find panels in the wild that
report the VESA interface in their VBT, but actually only support the
Intel backlight interface).

v3:
* Rebase

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Cc: thaytan@noraisin.net
Cc: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114221709.2261452-5-lyude@redhat.com
2021-01-19 12:35:52 -05:00
José Roberto de Souza
6e43e276b8 drm/i915: Initial implementation of PSR2 selective fetch
All GEN12 platforms supports PSR2 selective fetch but not all GEN12
platforms supports PSR2 hardware tracking(aka RKL).

This feature consists in software programming registers with the
damaged area of each plane this way hardware will only fetch from
memory those areas and sent the PSR2 selective update blocks to panel,
saving even more power.

But as initial step it is only enabling the full frame fetch at
every flip, the actual selective fetch part will come in a future
patch.

Also this is only handling the page flip side, it is still completely
missing frontbuffer modifications, that is why the
enable_psr2_sel_fetch parameter was added.

v3:
- calling intel_psr2_sel_fetch_update() during the atomic check phase
(Ville)

BSpec: 55229
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200810174144.76761-1-jose.souza@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-08-17 16:17:15 -04:00
Colin Ian King
0e2feab51b drm/i915: fix a couple of spelling mistakes in kernel parameter help text
There are a couple of spelling mistakes in kernel parameter help text,
namely "helpfull" and "paramters".  Fix them.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200616082129.65517-1-colin.king@canonical.com
2020-06-30 11:30:02 +03:00